Is GFN1-xTB supercell energy expected to be consistent with unitcell energy?

[leifjacobson]

Calling attention to a question I had on issue 5
#5 (comment)

I previously found GFN2-xTB energies to have an inconsistency, a similar inconsistency seems to be found with GFN1-xTB. Is this expected?

Thanks for any insight you can provide.